The International Council for Sustainable Energy (ICSE) is an alliance of the Clean Energy Council of Australia, the European Business Council for Sustainable Energy (e5) and the U.S. Business Council for Sustainable Energy. These organizations have been partners since 1992, and the formal alliance was launched in December 2007 at the United Nations Climate Change Conference in Bali, Indonesia.
The mission of the ICSE is to provide a cohesive and credible voice for the global sustainable energy industry in international climate change and sustainable development forums. The ICSE represents more than 500 companies with a commercial interest in the expansion of global sustainable energy markets. These companies are active in investing substantial capital to meet the intersecting challenges of climate change, energy security and access to clean energy.